Locking device for hinges.



1?. GEBHARDT. LOCKING DEVICE FOR HINGES.

. APPLICATION FILED PBB.15.1907.

- 1 I l4 /o \J V jrnswnnkrs PETERS cm, WASHINGTON, D c.

PATENTEDMAY 14 1907.

UNITED STATESEATENT OFFICE.

FRIEDRICH GEBHARDT, OF BALTIMORE, MARYLAND, ASSIGNOR OF ONE- HALF TOTHOMAS M. HARRINGTON, OF BALTIMORE, MARYLAND.

LOCKING DEVICE FOR HINGES.

Specification of Letters Patent.

Patented May 14,1907.

Application filed February 15, 1907. Serial No. 357,483-

To all whom it may concern:

Be it known that I, FRIEDRICH GEBHARDT, a citizen of the United States,residing at Baltimore, in the State of Maryland, have invented certainnew and useful Improvements in Looking Devices for Hinges, of which thefollowing is a specification.

This invention relates to improvements in looking devices for hinges,and has for its ob ject to provide a simple, cheap, and efficient devicewhich may readily be attached to the window frame for holding theshutter in the open position.

The invention consists of the new and novel construction and arrangementof parts hereinafter more fully set forth in the following specificationand pointed out in detail in the claims.

In the accompanying drawing,Figure 1.

is a view of a portion of the window frame and shutter, the latter beingin the open position, and showing my invention applied thereto. Fig. 2is a front elevation of the metal plate. Fig. 3 is an end view of thelatch. Fig. 4 is a front view of the latch.

Referring to the accompanying drawings, which form part of thisspecification, and in which like numerals of reference designate likeparts, 1 designates the window-frame 2 the shutter; and 3 the hinge uponwhich the shutter operates. I

The fastener consists of a metal plate 4 cut away at the top and bottomon its inner end at 5, 5, to fit over the inner end of the hinge, asseen in Fig. 1, and is secured in position by a screw 6 passing througha hole in-the inner end of the plate and into the window-frame. Thelower edge of the plate 4 rests on the upper edge of the inner half ofthe hinge 3 with one of the lugs 7 projecting behind the said hinge. Theplate 4 is provided with two of" the said lugs 7 ,cast integraltherewith and projecting beyond the top and bottom edges and flush withthe back of the plate. At the front end of the said plate 4 is anopening 8, the purpose of which will hereinafter more fully appear. Anapproximately T-shaped latch 9 is pivoted to the plate 4 at 10, and isprovided with a laterally projecting lug 11 by means of which the latchis lifted, and a cross-head 12 at its outer end, the extremities of saidcross-head 12 being beveled at 13, whereby when the shutter is openedthe half of the hinge attached thereto will strike against the lowerbeveledend 13 and raise the latch 9 and allow the latter to ride oversaid hinge until the shutter is fully opened when the end of the latchwill drop in front of the hinge beyond the pintle point and lock theshutter in the open position, as seen in Fig. 1. The latch 9 is alsoprovided with a lug 14 projecting through the opening 8 and having across-piece 15 projecting parallel with the cross-head 12. Thiscross-piece 15 lies close to the back'of the plate 4 and serves to keepthe latch 9 in its proper relative position and prevent it from beingforced from its pivot when the shutter is locked in the open position.

The latch 9 is secured to the plate 4 by first placing the cross-piece15 longitudinally through the opening 8 and then turning it to thevertical position, the rear end of the latch is then riveted to theplate. The opening 8 is not large enough vertically to permit thecross-piece 15 to pull out, but is just large enough to allow the lug 14to work up and down therein. 1

It will be seen that the plate 4 and the latch 9 are so constructed asto permit of the device being reversed in order that it may be used oneither side of the window-frame.

The plate 4 is secured to the window frame just above the hinge, as seenin Fig. 1.. When the shutter is opened the half of the hinge secured.thereto will strike the lower end of the latch raising the latter andallowing it to drop in front of the hinge when the shutter is fullyopened and lock the shutter in this position. When it is desired toclose the shutter the latch 9 is raised until the hinge thereon passesthe lower end of the latch.

Having thus described my invention what I claim is:

1. As an article of manufacture, a locking device for hinges comprisinga metal plate having lugs projecting from the top and bottom edges, anda latch pivoted at one end to the side of said plate.

2. As an article of manufacture, a locking device for hinges comprisinga metal plate cut away on its inner end at the top and bottom to fit theupper inner edge of the hinge, and a latch pivoted atone end to the sideof said plate.

3. As an article of manufacture, a locking device for hinges comprisinga'metal plate cut away on its inner end at the top and bottom to fit theupper inner edge of the hinge, and a latch pivoted to said plate andprovided With a cross-head on its free end.

4. As an article of manufacture, a locking device for hinges comprisinga metal plate having lugs projecting from its upper and lower edges, anda latch pivoted to said plate and having acrosshead on its free end.

5. As an article of manufacture, a locking device for hinges comprisinga metal plate having an opening in its outer end, and a latch pivoted tosaid plate and having a cross-head on its outer end and a lug near theouter end projecting through said opening.

6. As an article of manufacture, a locking device for hinges comprisinga metal plate cut away on its inner end at the top and hottom, lugsprojecting from the upper and lower edges of said plate, and an openingin the front end of said plate, and :1 lat (:h {w oted to the said plateand having a cross-head on its outer end, a lug projecting through saidopening and provided with a eross-pieee thereon.

In testimony whereof I allix inv signatnre. in presence of twowitnesses. I

FRIEDRICH G ICBUAR [)T. W'itnesses:

MARY M. MAGRAW, GIIAPIN A. FEnoUsoN.

